<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>
<head>
  <meta name="generator" content=
  "HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org">

  <title>strtok</title>
  <link href="../cppreference.css" rel="stylesheet" type="text/css">
</head>

<body>
<table>
  <tr>
  <td>
  <div class="body-content">

  <div class="header-box">
    <a href="../index.html">cppreference.com</a> &gt; <a href=
    "index.html">Standard C String and Character</a> &gt; <a href=
    "strtok.html">strtok</a>
  </div>

  <div class="name-format">
    strtok
  </div>

  <div class="syntax-name-format">
    Syntax:
  </div>
  <pre class="syntax-box">
  #include &lt;string.h&gt;
  char *strtok( char *str1, const char *str2 );
</pre>

  <p>The strtok() function returns a pointer to the next
  &quot;token&quot; in <em>str1</em>, where <em>str2</em> contains the
  delimiters that determine the token. strtok() returns
  <strong>NULL</strong> if no token is found. In order to convert a
  string to tokens, the first call to strtok() should have
  <em>str1</em> point to the string to be tokenized. All calls after
  this should have <em>str1</em> be <strong>NULL</strong>.</p>

  <p>For example:</p>
  <pre class="example-code">
   char str[] = &quot;now # is the time for all # good men to come to the # aid of their country&quot;;
   char delims[] = &quot;#&quot;;
   char *result = <strong>NULL</strong>;
   result = strtok( str, delims );
   while( result != <strong>NULL</strong> ) {
       printf( &quot;result is \&quot;%s\&quot;\n&quot;, result );
       result = strtok( <strong>NULL</strong>, delims );
   }            
</pre>

  <p>The above code will display the following output:</p>
  <pre class="example-code">
   result is &quot;now &quot;
   result is &quot; is the time for all &quot;
   result is &quot; good men to come to the &quot;
   result is &quot; aid of their country&quot;          
</pre>

  <div class="related-name-format">
    Related topics:
  </div>

  <div class="related-content">
    <a href="strchr.html">strchr</a><br>
    <a href="strcspn.html">strcspn</a><br>
    <a href="strpbrk.html">strpbrk</a><br>
    <a href="strrchr.html">strrchr</a><br>
    <a href="strspn.html">strspn</a><br>
    <a href="strstr.html">strstr</a>
  </div>
  </div>
  </td>
  


  </tr>
  </table>
</body></html>
